| EOAE | Evoked Oto-Acoustic Emission test |
|---|---|
| LASER | Light Amplication by Stimulated Emission of Radiation |
| DLE | delayed light emission; dialyzable leukocyte extract; discoid lupus erythematosus; disseminated lupu... |
| ES | ejection sound; elastic stocking; electrical stimulus, electrical stimulation; electroshock; emergen... |
| ESD | electronic summation device; electrostatic discharge; emission spectrometric device; end-systolic di... |
| field-emission microscope | <instrument, microscopy> Either one of two kinds of point-projection microscopes, both invented by E. W. Muller: (1) The older device (1936) is a specialised cathode-ray tube, employing field-emission of electrons from a negatively charged tip of a very sharp needle in a vacuum, by point-projection of the image onto a positively charged, fluorescent screen. (2) A later device (field-ion-mission microscope, 1950) emits absorbed helium ions from an anode. (05 Aug 1998) |
|---|---|
| field emission tube | An X-ray tube that uses a cold cathode, relying on the tube voltage to pull electrons from it to the anode. (05 Mar 2000) |
| flame emission spectrophotometry | Determination of the concentration of an element by measurement of light emitted when the element is excited by energy in the form of heat. (05 Mar 2000) |